Winner
Updated October 2026
Data from the official Shelly and Third Reality sites.
2026 verdict
Shelly Presence Gen4 is the more complete option versus Third Reality Smart Presence Sensor R3 in 2026, helped most by rating, connectivity, and integrations.
It has the clearer edge on rating, connectivity, and integrations, and it stays ahead on Multi-Person detection and range of detection. Choose Third Reality Smart Presence Sensor R3 only if price matters more to you than the broader advantage from Shelly Presence Gen4. That is why Shelly Presence Gen4 wins the verdict here.
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Connectivity
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| Feature | Shelly Presence Gen4 | Third Reality Smart Presence Sensor R3 | Winner |
|---|---|---|---|
| Price | $84.99 | $39.99 | Third Reality Smart Presence Sensor R3 |
| Rating | 4.0 | 3.3 | Shelly Presence Gen4 |
| Connectivity | 2.4 GHz WiFi, Bluetooth, Zigbee | Zigbee | Shelly Presence Gen4 |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant | Shelly Presence Gen4 |
| Multi-Person Detection | YES | NO | Shelly Presence Gen4 |
| Range of Detection | 8m / 26ft | 6m / 19ft | Shelly Presence Gen4 |
| Weather Resistance | NO | NO | Tie |
| Sensors | Presence, Light | Presence, Light | Tie |
| Alerts | Presence Alerts | Presence Alerts | Tie |
Winner
$84.99
- + Rating: 4.0
- + Connectivity: 2.4 GHz WiFi, Bluetooth, Zigbee
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Price: $84.99 vs $39.99
20% OFF
$39.99
$49.99
- + Price: $39.99
- - Rating: 3.3 vs 4.0
- - Connectivity: Zigbee vs 2.4 GHz WiFi, Bluetooth, Zigbee
Frequently Asked Questions
Which is better overall: Shelly Presence Gen4 or Third Reality Smart Presence Sensor R3?
Shelly Presence Gen4 has the stronger overall profile in this comparison, especially for rating, connectivity, and integrations.
What is the biggest difference between Shelly Presence Gen4 and Third Reality Smart Presence Sensor R3?
Price is one of the clearest differences: Shelly Presence Gen4 lists $84.99, while Third Reality Smart Presence Sensor R3 lists $39.99.
Which one looks better on price?
Shelly Presence Gen4 is listed at $84.99, while Third Reality Smart Presence Sensor R3 is listed at $39.99. Third Reality Smart Presence Sensor R3 (better spec).
Who should buy Shelly Presence Gen4?
Choose Shelly Presence Gen4 if your priority is rating and connectivity and that matters more than price.
Who should buy Third Reality Smart Presence Sensor R3?
Choose Third Reality Smart Presence Sensor R3 if your priority is price and that matters more than rating.
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Compare all 16 Presence Sensors side by side
You are looking at two of them. The full table lines up all Presence Sensors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 16 Presence Sensors
- 33 specs compared
- 30 filters
- Presence Sensors
Presence Sensor FP1E
- Presence Sensors
Zigbee Human Presence Sensor
- Presence Sensors
Presence Gen4
- Presence Sensors
Smart Presence Sensor
- Presence Sensors
SenseGuard Presence Core
- Presence Sensors
Smart Presence Sensor
- Presence Sensors
Human Presence Sensor
- Presence Sensors
Presence Sensor FP2
- Presence Sensors
Smart Timer Light TL2
- Presence Sensors
Presence Sensor
- Presence Sensors
Smart Presence Sensor R2
- Presence Sensors
Smart Presence Sensor R3
- Presence Sensors
Spatial Multi-Sensor FP400
- Presence Sensors
Presence Sensor MS605
- Presence Sensors
MSR-2
- Presence Sensors
Human Presence Detector (Ceiling Mount)
- Buttons
BLU Button Tough 1 ZB
- Buttons
BLU RC Button 4 ZB
- Cameras
Camera
- Displays
Wall Display X1i
- Displays
Wall Display XL
- Displays
Wall Display
- Door & Window Sensors
BLU Door/Window Outdoor ZB
- Door & Window Sensors
BLU Door/Window ZB
- Energy Monitors
3EM-63W Gen3
- Energy Monitors
EM Gen3
- Energy Monitors
EM Gen4
- Energy Monitors
EM Mini Gen4
- Energy Monitors
Pro 3EM 3CT63
- Energy Monitors
Pro 3EM-400
- Energy Monitors
Pro 3EM v2
- Energy Monitors
Pro EM-50
- Gas Detectors
GAS (CNG)
- Gas Detectors
GAS (LPG)
- LED Bulbs
Multicolor Bulb E27 Gen3
- Motion Sensors
BLU Motion ZB
- Air Quality Monitors
Smart Air Quality Sensor
- Buttons
Smart Button ZB2
- Buttons
Smart Button
- Dongles
USBC-Dongle
- Garage Door Openers
Smart Garage Door Opener
- LED Bulbs
Smart Color Bulb ZB3
- LED Bulbs
Smart Color Bulb ZL2
- Presence Sensors
Smart Presence Sensor R2
- Presence Sensors
Smart Presence Sensor R3
- Presence Sensors
Smart Timer Light TL2
- Vibration Sensors
Vibration Sensor
- Wall Outlets
Smart Wall Outlet ZW1
- Water Leak Sensors
Smart Water Leak Sensor WL2
- Water Leak Sensors
Water Leak Sensor
- Window Coverings
Smart Blind Gen2
- Window Coverings
Smart Blind